Dumb, Dumb, Dumb...

[tomrasdf]

Looking for some advice from some folks who have been doing this for a while. I'm just wrapping up my first amp (a fixed bias 5f1 Champ, working on switchable bias, but that's a long way off) and I'm on the verge of starting up a new project. I've got a Gregory Tiger amp (check the link, half way down the page)

http://www.diyguitarist.com/GuitarAmps/GregoryAmps.htm

It's one of the most awful circuts I've heard. Basically a JV 18 watt. Sounds good until it starts to distort then it gets kinda barky and farty sounding. The plan was to gut it and re-build it as an 18 watt marshall clone. I mentined it on the Dumble forum and someone suggested I possibly check out a t-wreck, which sounds like a fantastic idea to me. I'm not crazy about marshalls anyway, I just knew it's give me some good experience building and would sound better (with any luck) than it does now. Probably a dumb idea.

Thoughts?

I haven't been able to find and schematic in the "files" forum for a 'wreck with an el84 duet. Such a thing out there? Has anyone had experience building one in such cramped quarters? My biggest worry is that there's not a ton of room in there and I might have to get creative with the layout (which is a little scary for me). I'm terribly excited about the prospects though.
-TR

[tomrasdf]

Well, just answered my own question. I found the Blue Express schematic. Looks fun. Is there something floating around out there with el84s and a long-tailed pair PI?

[d95err]

Over at the 18W forum, there is a variation of the TMB schematic that has a Trainwreck-style TMB channel instead of the typical Plexi-style TMB. I think it's called "Derailment".

Could be worth checking out too, if you've already got the basics for an 18W amp.

[gearhead]

For some reason this isn't in the files section, but UR-12 built a version of one of the first Liverpools that had a half power option. You could either build it that way, or just leave out two of the four tubes to save space.

[slajeune]

Hi Erik,

Over at the 18W forum, there is a variation of the TMB schematic that has a Trainwreck-style TMB channel instead of the typical Plexi-style TMB. I think it's called "Derailment".

Could be worth checking out too, if you've already got the basics for an 18W amp.

Actually, it's called a T-rex. The derailment is a single ended version of an Express. The T-rex has 1 x express channel and 1 x 18watt channel.

Cheers,
Stephane.

[slajeune]

Forgot to add, the schematic and layout of the T-rex can be found here: http://mhuss.com/18watt/schematics/

Cheers,
Stephane.